The Next Green Building Material: Loofah?![You must be registered and logged in to see this image.]

Look in your bathroom. Got a loofah in there? Ever used one? You know, like a sea sponge? Now think about it being used for building houses. Huh!? This is exactly what’s happening right now in Paraguay. Elsa Aldivar, a social activist teamed up with Pedro Padros, an industrial engineer to make this happen.

It didn’t happen right away. Aldivar was searching for a way to give women an earth friendly way to generate income, and encouraged them to cultivate loofah, that grows easily there, to be dried out and made into cosmetic products. But they found that a certain portion weren’t up to export standards, and 30% of the quality material was being shaved off while making mats, slippers, insoles and the cosmetic tools.

So she wondered what use/value could be created from these. Material for house walls and roofs, she decided. After extensive trial and error, she and Padros devised the perfect combination of loofah, recycled plastic, and things like cotton netting and corn husks, all of which would otherwise be disposed of. At less than $3 a square meter, competitive with wood.